Mark Edward Petersen was an American news editor and religious leader. He was born in Salt Lake City, Utah. He served as a member of the Quorum of the Twelve Apostles of the Church of Jesus Christ of Latter-day Saints from 1944 until his death. He became managing editor of the church-owned Deseret News in 1935 and then editor in 1941. He filled the vacancy in the Quorum caused by the excommunication of Richard R. Lyman.

The Deseret News is a multi-platform newspaper based in Salt Lake City, published by Deseret News Publishing Company, a subsidiary of Deseret Management Corporation, which is owned by the Church of Jesus Christ of Latter-day Saints. Founded in 1850, it was the first newspaper to be published in Utah. The publication's name is from the geographic area of Deseret identified by Utah's pioneer settlers, and much of the publication's reporting is rooted in that region.